ER Model and Business Rules - Technical MCQs

Q1:

When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

A Disjoint with total specialization

B Disjoint with partial specialization

C Overlap with total specialization

D Overlap with partial specialization

ANS:C - Overlap with total specialization

No answer description is available.